<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>call me</title>
</head>
<body style="text-align: center;">
    <br/>
    <p><a id="call" href="'tel:'+qrcodeStr"></a></p>
</body>
</html>
<script>
    (function(){
        var _search = window.location.search.replace('?', '').split('=')[1];
        document.getElementById('call').attributes.href.value = 'tel:' + _search;
        document.getElementById('call').innerHTML = '点击联系:' + _search;
    })()
</script>